John ii



(No Model.)

J. H. CORY. LIFTNG JAGK.

No. 469,832. Patented Maan-1,1892.`

'mlmllllnlnunu ww UNITED STATES PATENT OFFICE.

JOHN H. CORY, OF ALLEN, MICHIGAN, ASSIGNOR OF ONE-HALF TO ELIl-IU D..,

A CORY, OF SAME PLACE.

LIFTING-JACK.

SPECIFICATION forming part of Letters Patent No. 469,832, dated March 1,1892.

Application filed January 22, 1892. Serial No. 418.909. (No model.)

To @ZZ whom it may concern.'

Be it knownthat I, JOHN H. CORY, a citizen of the United States,residing at Allen, in the county of Hillsdale and State of Michigan,have invented a new and useful Lifting-Jack, of which the following is aspecification.

The invention relates to improvements in lifting-jacks.

The object of the present invention is to simplify and improve theconstruction oflifting-jacks and t'o provide one which may be readilyadjusted to suitv different vehicles, and to enable the same to bereadily held in elevated position without t-he employment of the usualcatches and pawls employed for holding the lifting-bar in itsadjustment.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fullyr described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure l is a perspective view of a lifting-jackconstructed in accordance with this invention. Fig. 2 is a sideelevation, partly in section.

Like numerals of reference indicate corresponding parts in both figures.

l designates a standard composed of parallel bars 2 and supported byinclined braces 3 and secured to the outer faces of the bars and havingtheir lower ends secured to a base 4, to which are also secured thelower ends of the bars 2 of the standard. .Connected with the standardby link-bars 5 and 6 is a liftingbar 7, which is held in an elevatedposition to raise the wheel of a vehicle in the usual manner by a lever8, which is fulcrumed at 9 between the bars 2 of the standard,`and whichhas its inner end 10 curved and connected by a link 1l with the lowerend of the lifting-bar by the same pivot which connects the linkbar 6withv the lifting-bar. Then the leverS is lowered to approximately ahorizontal position, as illustrated in Fig. l of the accompanyingdrawings, the curved end of the lever is brought in adjacent to thestandard and forms with the link 1l a straight brace for supporting thelifting-bar in an elevated position. It will thus be seen that theliftingbar is held elevated to support an axle of a vehicle without theemployment of the usual pawl and ratchet or equivalents. The axle to beraised is supported on an adjustable rest l2, which is provided at itsinner end with an opening 13 to receive the lifting-bar on which theadjustable rest is arranged.

The weight of an axle or vehicle causes the rest to bind against thelifting-bar sufficiently to prevent the rest slipping downward.

Vhen the device is not in use, the lever is thrown upward against thestandard,as illustrated in Fig. 2 0f the accompanying drawings, to forma compact device, so that the samemay be readily shipped or storedwithout the necessity of removing the parts.

Vhat I claim is- -In a lifting-jack, the combination of a standard, alifting-bar, linkbars pivotally connected to the lifting-bar and thestandard, a lever arranged beneath the lifting-bar and fulcrumed on thestandard and havingitsinner end curved, and a link connecting the innerend of the lever with the lifting-bar, whereby the latter is heldelevated when the lever is lowered, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signatu re in the presence-of two witnesses.

JOHN II. CORY.

Vitnesses:

W M. N. BENGE, F. A. ROETHLISBERGER.

